LASIK eye surgery and PRK both correct vision by re-shaping your cornea with targeted laser energy. The main difference is that in LASIK, a flap is created on the outermost layer of your cornea (the epithelium) to allow the laser to access the treatment area underneath. This flap is then replaced after treatment and allowed to heal. In PRK, no corneal flap is created; instead the entire epithelium is removed using the laser. This outermost layer then regenerates naturally over time.
Because of this difference in method, it may take longer for you to notice results with PRK compared to LASIK. However, the ultimate outcome is the same. Using a corneal flap in LASIK allows the eye to heal more quickly, meaning LASIK patients often notice improved vision as soon as the day after their procedure. PRK patients usually have to wait around three days before improved vision is noticeable, and they will experience light sensitivity for longer than a LASIK patient, as the cornea’s outer layer regenerates.
In short, there is no difference between the quality of your results with PRK and the quality of your results with LASIK. Both procedures can correct myopia, hyperopia, and astigmatism effectively. Since LASIK involves faster healing, it is usually recommended over PRK. However, PRK is ideal for patients who have a thin cornea, or specific corneal irregularities that would make the creation of a flap difficult. Dr. Khanna will discuss all of these factors with you in detail during your consultation.
If you have further questions about LASIK or PRK, please contact The Khanna Institute today or call (888) 339-8143 to schedule a free screening with our experienced Los Angeles LASIK surgeon Dr. Rajesh Khanna. We serve patients in Beverly Hills, Westlake Village, and surrounding areas of Los Angeles, California.